EP 0455809 B1 19960710 - Apparatus for pneumatically transporting high-density powdered or granular materials
Title (en)
Apparatus for pneumatically transporting high-density powdered or granular materials
Title (de)
Pneumatische Fördervorrichtung für verdichtete pulverförmige oder körnige Materialien
Title (fr)
Dispositif de transport pneumatique de poudre ou de granulat comprimé
Publication
Application
Priority
- JP 8900349 W 19890331
- JP 19973288 A 19880809
- JP 13804288 A 19880603
- JP 8197288 A 19880401
Abstract (en)
[origin: EP0455809A1] An improvement in an apparatus for pneumatically transporting powder held in an air-tight storage container (3) to a collector (6) through a transportation tube (5), which is provided at its intermediate part with a vertically rising tube member (5b), by usinga gas pressure. The transportation tube (5) consists of a lower tube member (5a) having a tapered tubular accelerating reducer (71) and connected to the container (3), an upper horizontal tube member (5c) connected to the collector (3) and having at its starting end an inversely tapered tubular decelerating reducer (74), and the vertically rising tube member (5b) connecting these lower and upper tube members (5a, 5c) together. The tube member (5b) is provided at an intermediate part thereof with an inversely tapered tubular decelerating reducer (72), and an acceleration regulating reducer (73A) having a tapered tubular accelerating part above the bottom including a constricted part (73b), said reducers (72, 73A) being vertically connected.
IPC 1-7
IPC 8 full level
B65G 53/12 (2006.01); B65G 53/52 (2006.01)
CPC (source: EP KR US)
B65G 53/06 (2013.01 - KR); B65G 53/12 (2013.01 - EP US); B65G 53/521 (2013.01 - EP US); B65G 53/525 (2013.01 - EP US); B65G 2201/0291 (2013.01 - EP US)
Citation (examination)
- JP S5733124 A 19820223 - KUBOTA LTD
- JP S5748528 A 19820319 - NIHON CEMENT
Designated contracting state (EPC)
AT CH DE GB LI NL
DOCDB simple family (publication)
EP 0455809 A1 19911113; EP 0455809 A4 19920311; EP 0455809 B1 19960710; AT E140203 T1 19960715; DE 68926820 D1 19960814; DE 68926820 T2 19961107; KR 900700371 A 19900813; US 5154545 A 19921013; WO 8909173 A1 19891005
DOCDB simple family (application)
EP 89904207 A 19890331; AT 89904207 T 19890331; DE 68926820 T 19890331; JP 8900349 W 19890331; KR 890702254 A 19891201; US 44566989 A 19891201